How does this work exactly. I get it can see a fair amount of stuff on my browser, but if I close the page and then reopen the visit doesn’t go to 2 and I don’t see the signature I added. Does this mean it cannot fingerprint my setup?

Edit: I also tried this on my fairly vanilla firefox installation with ublock origin and I see that the visit count will go up as I return to the page—so I suppose the fingerprinting is working on that setup. On my iPad with adguard each visit appears to be unique.